Electrically-operated annunciator.



T. A. MGGANNA 82; A. GREENE.

ELEGTR-IGALLY OPERATED ANNUNCIATOR.

APPLIGATION FILED APR. 24, 19111 1,059, 185. r Patented Apr. 15,1913.

V INVENTORJ, al a 777a 3" I a I r A f f f v (a A Tmm/Ew h WITNESSES THEODORE MGCANNA AND ADDISON GREENE, OF FREEPORT, PENNSYLVANIA.

ELECTRICALLY OPERATED ANNUNCIATOR.

Specification of Letters Patent.

Patented Apr. 15,1913.

Application filed April 14, 1911. Serial No. 621,147.

To all whom it may concern:

Be it known thatwe, THEODORE A. Me

CANNA and AnnIsoN GREENE, citizens of the United States of America, residing at Freeport, in the county of Armstrong and State of Pennsylvania, have invented certain new and useful Improvements in Electrically-Operated Annunciators, of which the following is a specification, reference being had therein to the accompanying drawe- This invention relates to an electrically operated annunc'iator for gas meters and similar devices.

The object of our invention is to provide a simple and inexpensivedevice that can be,

easily operated by the index finger of an ordinary gas meter or other registering device,

to indicate at a point removed from the gas meter the amount of gas passing through the meter. To this end, we have devised an electrical device embodying a plurality of elements that can be easily and quickly assembled to cooperate with the gas meter. and the construction and arrangement of these elements will be hereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a front elevation of our device. Fig. 2 is a front elevation of a contact dial, and Fig. 3 is a rear elevation of the same taken on the line 1111 of Fig.1}

Like numerals of reference designate corresponding parts throughout the several views.

The reference numeral 1 denotes a disk of insulation, preferably made of fiber. Mounted in the rear side of the disk 1 is an annular metallic member 2, preferably constructed of copper and extending through said member 2 is a circular row of binding posts 3, these latter at the front side of the disk 1 being provided with platinum points 4.

5 denotes a shaft journaled in the disk 1, said shaft having the forward end thereof provided with a resilient contact arm 6 adapted to engage or wipe the platinum points 4. The rear end of the shaft 5 is adapted to be coupled to the index finger operating shaft of a gas meter or other registering device 7.

8 denotes a contact plate mounted upon the rear side of the disk 1 and 'frictionally engaging the shaft 5, said plate having a binding post 9.

10 denotes a relay of the ordinary and well known type having one of the binding posts 11 thereof connected by a wire 12 to the binding post 9. Another binding post 13 of the relay is connected by a wire 1 1 to a suitable source of electrical energy, as a battery 15, and said battery is connected by a wire 16 to one of the binding posts 3 of the copper plate 2.

17 denotes an electromagnet having one of the binding posts 18 thereof connected by a wire 19 to a binding post 20 of the relay The other binding post 21 of the electromagnet is connected by a wire 22 to a suitable source of electrical energy, as a battery 23, and said battery is connected by a wire 241 to another binding post 25 of the relay 10.

26 denotes an indicator of a conventional form adapted to be actuated by an. extension 27 of an armature 28 of the E29 denotes an audible signal, as a bell carried by the'electromagnet 17 and adapted to be actuated when said electromagnet is energized.

As the shaft 5 is revolved or intermittently moved by the gas meter, the contactarm 6 engages the platinum points 4 and completes electric circuits teat energize the electromagnet 17 and the pulsations of said electromagnetactuates the annunciator.

From the foregoing it will be observed that the disk or contact dial 1 serves functionally as a commutator and that the annunciator can be located at some remote point relatively to the gas meter.

What we claim is In combination a'gas meter, a source of electrical energy, a disk of insulation, a shaft having-its outer end portion journaled in said disk centrally thereof, said shaft projecting forwardly and rearwardly from said disk and having its rear end en-.

larged and bifurcated for coupling itto the pointer of a gas meter whereby the shaft will be shifted during movement of the pointer, an annular metallic member mounted in the rear face of said disk in proximity to its edges, a circular row of spaced binding posts extending through said .disk and member having their outer ends provided with platinum points, a contact arm carried upon theouterend of said shaft and eleotromagnet 1'7.

capable of engaging said platinum points cater when the magnet is energized by 0105- 10 when the shaft- 15 shifted to close a CHCtUIt, :1 mg the circuit.

plate carried by said shaft inwardly of the In testimony whereof we a fiix our signadisk, a relay in circuit with said source and tures in the presence of two Witnesses.

5 member, electrical connections between said THEODORE A McGANNA.

source and said plate, an electromagnet in I ADDISON GREENE. circuit with said relay, an indicator and an Witnesses: operative connection between the indicator A. H. CLAWSEN,

and said magnet for operating the indi- W. M. BOYD. 

